\I have never thought of billboards & other ads as graffiti but i guess it does the same thing. Advertising is kind of an arms race anyway, so I bet there would be plenty of corporations that wouldn't care much if we banned it all. I don't really think a wikipedia model for painting buildings would work out too well though, since removing vandalism and restoring a wall the way it used to be is too expensive. Also, Imagine how far a corporate ad budget could go in spray cans and markers. People that fall sleep outdoors would probably end up with Coca-Cola written across their forehead. I would say that I would love to see clever graffiti like this all over the billboards in my city.

that's just awesome...classic. i love it. graffiti is just taking back public space that should be ours but because of capitalism and insane advertising is covered in propaganda/crap advertising all over the place. i'd love to see graffiti all over my city...